package com.imooc.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;
@Configuration
public class CorsConfig {

    public CorsConfig( ){

    }
    @Bean
    public CorsFilter corsFilter(){
        //1. 添加cors配置信息
        CorsConfiguration config = new CorsConfiguration();
        config.addAllowedOrigin("http://localhost:8080");

        //设置是否发送cookie信息
        config.setAllowCredentials(true);

        //设置允许请求的方式
        config.addAllowedMethod("*");

        //设置允许的header
        config.addAllowedHeader ("*");

        // 2. 为url添加映射路径

        UrlBasedCorsConfigurationSource corsSource = new UrlBasedCorsConfigurationSource();
        corsSource.registerCorsConfiguration("/**",config);

        // 3. 返回重新定义好的corsSource
        return  new CorsFilter(corsSource);


    }
}
